42765388 has 12 divisors (see below), whose sum is σ = 74887792. Its totient is φ = 21368880.

The previous prime is 42765367. The next prime is 42765403. The reversal of 42765388 is 88356724.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7081 + ... + 11647.

Almost surely, 2^42765388 is an apocalyptic number.

It is an amenable number.

42765388 is a deficient number, since it is larger than the sum of its proper divisors (32122404).

42765388 is a wasteful number, since it uses less digits than its factorization.

42765388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6912 (or 6910 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 42765388 is about 6539.5250592073. The cubic root of 42765388 is about 349.7014815174.

The spelling of 42765388 in words is "forty-two million, seven hundred sixty-five thousand, three hundred eighty-eight".